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Iron ore beneficiation process flow chart

2022-03-08 Xinhai (190)

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Iron Ore Beneficiation increases the grade of iron whilst maximising recovery and reduces the content of ultrafine low grade slimes to maximise return on investment from the mining process prior to sale or further refining in the iron making process. Existing technologies are deficient and hence the goal is to develop innovative approaches in dry beneficiation and wet gravity separation of fines.

【Iron ore beneficiation Process Description】

1.Large raw iron ore for primary crushing are fed into the jaw crusher by Plate feeder and are reduced to 8 inches or smaller. After first crushing, the material will transferred to cone crusher by belt conveyor for secondary crushing; the crushed iron ore stone will then transferred to vibrating screen for classifying. After classifying, the parts whose size below the mesh size will be transferred away as final products, while the other parts will return to cone crusher, thus forming a closed circuit. Size of final products can be combined and graded according to your specific requirement.

2.The smaller crushed iron ore is fed to ball mill for grinding. Inside the ball mill, the crushed iron ore will grind the ore to about 0.2 mm with 3-inch steel balls.

3.This iron ore slurry is pumped to the agitation tank. This iron ore slurry is finally pumped to the flotation machine with the fine sulfide ore (~-0.074 mm) going to froth flotation machine for recovery of iron.

4.In magnetite processing plant,the process of flotation separation is replaced by magnetic separation. The minerals are conveyed to the permanent magnetic dewatering tank for concentrate and then concentrate will enter permanent magnetic drum for a second magnetic separation. The concentrate after filtration and drying are conveyed to warehouse for storage.

【Iron ore beneficiation process flow chart】

iron-ore-beneficiation-process-flow-chart .jpg



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